I've got an old skool smiths rev counter that i need to wire in to my zetec with ESC, it's got 3 connections on the rear and it's not very clear how to wire it in, could someone give me a basic guide.

It also has a small thing come with it, possibily an amplifier or some sort, some pics...


the bottom connector it says goes to contact breaker, the connector on the right has a -ve symbol on it and goes to earth and the top connector has a +ve on it goes to a battery symbol i think, long and short lines?and then joins the wire coming from the side -ve connection before that joins the earth.

So i'm taking it to be a swiched live, ground and feed from esc?

this it what came with it



it just says top and an arrow and B on it

Thanks

I've a similar unit, and am using the tach out from MJLJ in place of the contact breaker connection, other 2 are +ve & -ve.

The other bit you have is an instrument voltage stabiliser, often screwed on the back of the tach but nothing to do with it.

if your planning tio use the smiths fuel / temp gauge from a Midget, Mini etc you will need the stabiliser as they are reliant on it, it also has to be fitted level if I recall correctl. I would think that the terminal marked points need to have a direct feed from the coil pack and the other terminal to earth. The battery symbol is posible for a live ignition feed

yes. but dunno what you mean by "feed from esc"?

Tacho is for points type distributor.

The + and - you have sussed, the other contact goes to - connection of coil, the one that is switched by the points.

Other item is voltage stabiliser - gives about 9 V and is for instruments such as temp and fuel guages.

Sorry i should have explained, the ESC is an ignition system found on early mk3 fiestas and mk5 escorts which used a coil pack and ran with a carb.

Basically it uses a vacuum feed from the inlet to advance the ignition and you plug it in connect up 2 wires and it will independantly run a zetec on carbs

Very simple system, got the rev counter wired up but seems to be reading only half now?

Thanks, Mark